Omega's high accuracy piezoresistive pressure transducers have a
proven record in high performance commercial and
aerospace applications for over 25 years. The
piezoresistive process uses strain gauges molecularly
embedded into a highly stable silicon wafer. The silicon
wafer is diced into individual die which each contain a
full strain gauge bridge. The die is mounted in a sealed
chamber protected from the environment by glass to
metal seals and a stainless steel diaphragm.

A small volume of silicone oil transfers the pressure from
the diaphragm to the strain bridge. The construction
provides a very rugged transducer with exceptional
accuracy, stability and thermal effects. A unique design
ruggedizes the transducers by providing secondary fluid
containment in the event of a diaphragm rupture.

During our production process, automated test
equipment performs pressure and temperature cycling
on 100% of the PXM409 transducers. The transducers
are then calibrated using extremely high accuracy
standards and a 5-point traceable calibration certificate is included with each transducer. The
inherent stability of the piezoresistive core provides
excellent long term stability, repeatability and very low
thermal effects at the price of much lower performance
transducers. Standard features of the PXM409 Series
also include protective features built into the electronics
and the pressure element. Reverse polarity, EMC, and
power supply fluctuation protection are standard on all
models. Intrinsically Safe and CSA ratings are optional.

The table below features transmitters with popular pressure ranges, 4-20 mA outputs and micro DIN connector.
To order other pressure ranges and/or output types see the Part Number Builder below the table.

Still can't find the right model? Specify the perfect transducer for your application with this easy, step-by-step configurator.

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bar Range - Not all ranges are available for every pressure type select from:025H for 25 mbar070H for 70 mbar170H for 170 mbar350H for 350 mbar1100H for 0 to 1100 mbar (barometric models only)550H for 550 to 1100 mbar (barometric models only)880H for 880 to 1100 mbar (barometric models only)001B for 1 bar002B for 2 bar3.5B for 3.5 bar007B for 7 bar010B for 10 bar17.5B for 17.5 bar035B for 35 bar050B for 50 bar070B for 70 bar100B for 100 bar175B for 175 bar245B for 245 bar350B for 350 bar

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Pressure Type select from:G for GaugeA for AbsoluteV for VacuumCG for Compound GaugeB for Barometric